Metal Roof Snow Load Ontario — ROOFNOW™ Guide

Freeze events in Ontario cause rapid temperature drops that stress roofing materials. Asphalt shingles often crack or warp during these shifts. Armadura® Metal Roofing, made from G90 steel, remains structurally stable during all freeze events.

How Freezing Temperatures Damage Asphalt

During sudden temperature shifts, asphalt becomes brittle and loses adhesion. Meltwater that enters the system refreezes and expands, leading to roof deck damage. Learn more winter roofing science at ROOFNOW™ Knowledge Center.

Armadura® Stability in Freeze Events

• Non-absorbent steel prevents internal freezing
• Interlocking system resists expansion pressure
• SMP Crinkle Finish moderates surface temperature

ROOFNOW™ Recommendation

Armadura® is built for extreme freeze events common throughout Ontario. Explore more roofing knowledge in Roof Smart. Roof Once..

Learn more: ROOFNOW™ Armadura® Metal Roofing